The optical quantification measurement on aggregated aqueous ZnO nanostructures upon exposure to tannic acid

Lah, Nurul Akmal Che; Kamaruzaman, Aqilah

doi:10.1088/2053-1591/ab5754

Cited by 3 publications

(1 citation statement)

References 48 publications

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“…ZnO is one of the vital materials in semiconductor therefore becomes one of the leading contenders in micro-electric industries materials. The formation of functional surface ZnO nanostructures through OA to construct hierarchically structured ZnO in aid of surfactant has been rapidly growing [10,11]. The unique properties of the ZnO semiconductor are caused by the generation of novel phenomena driven by interactions at their interfaces due to the presence of surfactants in between the aligned nanostructures, that promote the OA based on surfactant interaction-related driving forces for self-assembly formation, kinetic stabilization between the intermediate nanoparticles, and control of coalescence preferential crystal face or the morphology of the nanocrystal [9,12,13].…”

Section: Introductionmentioning

confidence: 99%

pH-Dependent Formation of Oriented Zinc Oxide Nanostructures in the Presence of Tannic Acid

2020

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To crucially comprehend the relaying factors behind the growth mechanism of ZnO nanostructures, the needs to understand the cause of preferences in the enhancement of desired physicochemical properties are essential. The particular oriented attachment (OA) is believed to become the cause of the classical growth pattern of ZnO nanostructures which is mainly controlled by the Ostwald ripening (OR) process. In the present work, the concerns over the systematic changes in size and the morphological surface of ZnO nanostructures upon exposure to tannic acid (TA) prepared by drop-wise method turns the particles to different surface adjustment state. Here, we assessed the TA capping ability and its tendency to influence the OA process of the ZnO nanostructures. The detailed process of the growth-based TA system via transmission electron microscopy (TEM), scanning electron microscopy (SEM), and FFT autocorrelation revealed the pH effect on their physical properties which proved the transition surface properties state of the particles from rough to smooth states due to oriented attachment. For pure ZnO nanostructures, the surface is almost smooth owing to the strong bonding particles which are then changed to coarsened surface structures upon the introduction of TA. Strong surface adsorption of Zn cations and phenol ligands mediated the agglomerated nanocrystals, surprisingly with smaller nanostructures dimension.

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Section: Introductionmentioning

confidence: 99%

pH-Dependent Formation of Oriented Zinc Oxide Nanostructures in the Presence of Tannic Acid

2020

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The applications of flower-shaped ZnO-UHMWPE fibers in photocatalysis and composites

Liu

Wei

et al. 2023

Journal of Industrial and Engineering Chemistry

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Fabrication and Characterization of High-Quality UV Photodetectors Based ZnO Nanorods Using Traditional and Modified Chemical Bath Deposition Methods

et al. 2021

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Ultraviolet (UV) photodetectors (PDs) based on high-quality well-aligned ZnO nanorods (NRs) were fabricated using both modified and conventional chemical bath deposition (CBD) methods. The modified chemical bath deposition (M-CBD) method was made by adding air bubbles to the growth solution during the CBD process. The viability and effectiveness of M-CBD were examined by developing UV PDs based on ZnO NRs. The ZnO nano-seed layer was coated on a glass substrate utilizing radiofrequency (RF) sputtering. The impact of the different growth-times on morphology, growth rate, crystal structure, and optical and chemical properties were investigated systematically using different characterization techniques, such as field-emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD) analysis, UV–VIS double beam spectrometer, and energy dispersive X-ray analysis (EDX), respectively. The Al/ZnO UV PDs based on ZnO nanorods were fabricated with optimum growth conditions through the two methods of preparation. This study showed that the synthesized ZnO NRs using the M-CBD method for different growth times possess better properties than the conventional method under similar deposition conditions. Despite having the highest aspect ratio and growth rate of ZnO NRs, which were found at 4 h growth duration for both methods, the aspect ratio of ZnO NRs using the M-CBD technique was comparatively higher than the conventional CBD method. Besides, the UV PDs fabricated by the M-CBD method at 5 V bias voltage showed high sensitivity, short response time, quick recovery time, high gain, low dark current, and high photocurrent compared with the UV PD device fabricated by the conventional CBD method.

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The optical quantification measurement on aggregated aqueous ZnO nanostructures upon exposure to tannic acid

Cited by 3 publications

References 48 publications

pH-Dependent Formation of Oriented Zinc Oxide Nanostructures in the Presence of Tannic Acid

pH-Dependent Formation of Oriented Zinc Oxide Nanostructures in the Presence of Tannic Acid

The applications of flower-shaped ZnO-UHMWPE fibers in photocatalysis and composites

Fabrication and Characterization of High-Quality UV Photodetectors Based ZnO Nanorods Using Traditional and Modified Chemical Bath Deposition Methods

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